Algebra and Trigonometry 10th Edition

Published by Cengage Learning
ISBN 10: 9781337271172
ISBN 13: 978-1-33727-117-2

Chapter 5 - 5.5 - Exponential and Logarithmic Models - 5.5 Exercises - Page 409: 61


$\bf {False}$

Work Step by Step

$y=\dfrac{a}{1+be^{-rx}}$ When $b$ is positive, $be^{-rx}$ is always positive. The denominator can never be zero. Therefore, the domain will be the set of real numbers. Thus, the statement is false.
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